The HORIBA LAQUAtwin Pocket Tester series provides a comprehensive solution for fast and precise measurement of water quality parameters directly in the field. To ensure these measurements remain reliable and accurate, regular monitoring of the sensors and, if necessary, replacement with spare sensors is crucial. These replacement sensors are tailor-made for the HORIBA LAQUAtwin series and cover a wide range of types for various measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is designed to maximize user-friendliness and accuracy, which HORIBA is renowned for in water quality testing worldwide. HORIBA replacement sensors guarantee users that their devices consistently deliver optimal performance and precise measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be exchanged quickly, allowing uninterrupted measurement. High Accuracy: Replacement sensors ensure precise and reliable results. Wide Measurement Range: Various sensor types are available to capture a broad spectrum of water quality parameters. Durability: Sensors are designed for long service life, even under challenging conditions. Sensor Replacement Instructions: Follow these steps to replace the sensor and maintain the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester: Removing the Sensor: Turn off the tester. Lift the sensor tip slightly and pull the sensor away from the device. Completely detach the sensor from the tester. Installing the Sensor: Make sure the tester is turned off. Ensure the waterproof gasket is intact and clean. Attach the sensor to the tester so that hook “A” on the back of the device fits into hole “a” on the sensor tip. Make sure the waterproof gasket is not twisted. Important: After replacing the sensor, follow the instructions in the user manual of the respective tester to make the device ready for accurate measurements. This typically includes calibration and, if necessary, conditioning. How can I tell if my sensor is worn out? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, the sensor should be replaced. Regular checks and timely replacement of sensors ensure the high quality and reliability of your water quality measurements with HORIBA LAQUAtwin Pocket Testers. Manufacturer Part Nr. 3200459866

HORIBA LAQUAtwin Pocket Tester Sensors – Quick, Accurate, and Reliable The HORIBA LAQUAtwin Pocket Tester series enables fast and precise on-site measurement of water quality parameters. To ensure consistently reliable results, it is essential to check the sensors regularly and replace them when necessary.These replacement sensors are specially designed for the HORIBA LAQUAtwin series and are available in a wide range of variants for different measurements: pH, conductivity, salinity, redox (ORP), and ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is engineered for maximum user-friendliness and accuracy—qualities that have made HORIBA a global leader in water quality testing.  Benefits of HORIBA Replacement Sensors: Easy replacement – Simple sensor exchange allows quick resumption of measurements. High accuracy – Ensures precise and reliable measurement results. Wide application range – Different sensors available for various water quality parameters. Durability – Designed for long service life, even under demanding conditions.Sensor Replacement InstructionsRemoving the sensor:  Switch off the tester.  Lift the sensor tip, then slide it slightly away from the device.  Pull the sensor out completely.  Attaching the sensor:  Ensure the tester is switched off.  Check that the waterproof seal is clean and intact.  Press the sensor into the device so that hook "A" on the tester fits into hole "a" on the sensor tongue.  Make sure the seal is not twisted. Important: After replacement, follow the instructions in your tester’s user manual to resume operation. Calibration—and in some cases conditioning—may be required. (Calibration instructions are included with the product.)  FAQ – Checking Sensor WearQ: How can I tell if my sensor is worn out? A: Perform a 2-point calibration. If a calibration error occurs, this indicates sensor deterioration and the sensor should be replaced.Regular inspection and timely replacement of sensors will ensure the long-term accuracy, reliability, and high quality of your HORIBA LAQUAtwin Pocket Tester measurements. Manufacturer Part Nr. 3200459867

Manufacturer Part Nr. 3200459868

HORIBA Nitrate Replacement Sensor (S040) for Pocket Testers NO3-11, NO3-11C and NO3-11SThe HORIBA LAQUAtwin Pocket Tester series allows water quality parameters to be measured quickly and accurately on site. To ensure that these measurements are reliable and accurate, it is very important to check the sensors regularly and replace them with replacement sensors if necessary. These replacement sensors have been specially developed for the HORIBA LAQUAtwin series and offer a wide range of variants for different measurements: pH value, conductivity, salinity, redox (ORP) and ion-selective sensors for sodium, potassium, nitrate, calcium and fluoride. Each of these sensors has been designed with the aim of maximising user-friendliness and accuracy, for which HORIBA is known worldwide in the field of water quality testing. The advantages of HORIBA replacement sensors are: Easy replacement: It is easy to replace the sensors, allowing measurements to be resumed quickly. Highest accuracy: The replacement sensors ensure that the measurement results are precise and reliable.Wide range of measurements: Different types of sensors are available for different water quality parameters.Durability: The sensors are designed to have a long service life even under challenging conditions. Instructions for replacing the sensor: To ensure that your HORIBA LAQUAtwin Pocket Tester is durable and accurate, please follow these steps when replacing the sensor:Remove the sensor Switch off the measuring device. Lift the tip of the sensor. Then slide the sensor slightly away from the measuring device. Remove the sensor completely from the measuring device (by pulling).Attaching the sensor  Switch off the measuring device. Make sure that the water-repellent seal is clean and undamaged. Press the sensor onto the measuring device so that hook ‘A’ on the back of the device fits into hole ‘a’ on the tongue of the sensor.Make sure that the waterproof seal is not twisted. Important:To put the measuring device back into operation for correct measurement, follow the steps in the operating instructions for the corresponding tester after replacement. (Our products include such instructions. In most cases, calibration and, if necessary, conditioning are required.)  Question: How can I check if my sensor is worn out?  Answer: By checking the condition of the sensor as follows:  Perform a 2-point calibration to check the sensor condition. If a calibration error occurs, this suggests that the sensor is deteriorating. The sensor should therefore be replaced.  Regular checks and timely replacement of sensors ensure the high quality and reliability of your water quality measurements using the HORIBA LAQUAtwin Pocket Testers.  Manufacturer item number: 3200459870

The HORIBA LAQUAtwin Pocket Tester series provides a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure these measurements remain reliable and accurate, regular monitoring of the sensors and, if necessary, replacement with spare sensors is essential. The replacement sensors are specifically designed for the HORIBA LAQUAtwin series and cover a wide range of types for various measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is engineered to maximize user-friendliness and accuracy, qualities for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and precise measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: The sensors can be replaced quickly, allowing measurements to continue without delay. High Precision: Replacement sensors ensure that results are accurate and reliable. Wide Measurement Range: Various sensor types are available to cover a broad spectrum of water quality parameters. Durability: The sensors are designed for long service life, even under challenging conditions. Sensor Replacement Instructions: Follow these steps when replacing the sensor to ensure the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester: Removing the Sensor: Turn off the tester. Lift the sensor tip slightly and pull the sensor a short distance away from the device. Completely detach the sensor from the tester. Installing the Sensor: Ensure the tester is turned off. Check that the waterproof gasket is intact and clean. Place the sensor onto the tester so that hook “A” on the back of the device fits into hole “a” on the sensor tip. Make sure the waterproof gasket is not twisted. Important: After replacing the sensor, follow the instructions in the user manual of the respective tester to make the device ready for accurate measurement. These manuals are available with the products and typically require calibration and, if necessary, conditioning. How can I tell if my sensor is worn out? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, the sensor should be replaced. Regular checks and timely sensor replacement ensure that water quality measurements with HORIBA LAQUAtwin Pocket Testers remain accurate and reliable. Manufacturer Part Nr. 3200459869

The HORIBA LAQUAtwin Pocket Testers provide a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure that these measurements remain reliable and accurate, it is essential to regularly check the sensors and replace them with spare sensors if necessary. The replacement sensors, developed specifically for the HORIBA LAQUAtwin series, cover a variety of types for different measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each of these sensors is designed to maximize user-friendliness and precision, qualities for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and accurate measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be replaced quickly, allowing measurements to continue without delay. High Precision: Replacement sensors ensure results are accurate and reliable. Comprehensive Measurement Range: Various sensor types are available to measure a wide range of water quality parameters. Durability: Sensors are designed for long service life even under challenging conditions. Sensor Replacement Instructions: To ensure the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester, follow these steps when replacing a sensor: Removing the Sensor: Turn off the tester. Slightly move the sensor away from the device and lift the sensor tip. Detach the sensor completely from the tester so there is no connection between the two parts. Installing the Sensor: Ensure the tester is turned off. Check that the waterproof gasket is clean and intact. Attach the sensor to the tester by inserting hook “A” on the back of the device into hole “a” on the sensor tip. Ensure that the waterproof gasket is not twisted. Important: After replacing the sensor, follow the instructions in the user manual of the respective tester to make the device ready for accurate measurement. (These manuals are available with the products. Calibration and, if necessary, conditioning are usually required.) How can I check if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, it is recommended to replace the sensor. Regular checks and timely replacement of sensors are essential to ensure the high standards and reliability of water quality measurements performed with HORIBA LAQUAtwin Pocket Testers. Manufacturer Part Nr. 3200934450

Manufacturer Part Nr. 3200459672

The HORIBA LAQUAtwin Pocket Testers provide a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure that these measurements remain reliable and accurate, it is important to regularly check the sensors and replace them with spare sensors if necessary. The replacement sensors developed for the HORIBA LAQUAtwin series cover various types for different measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. All of these sensors are designed to maximize user-friendliness and precision, qualities for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and accurate measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be quickly exchanged, allowing measurements to continue without delay. High Precision: Replacement sensors ensure that results are exact and reliable. Wide Measurement Range: Various sensor types are available to capture a broad spectrum of water quality parameters. Durability: Sensors are designed for long service life, even under challenging conditions. Sensor Replacement Instructions: To ensure the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester, please follow these instructions when replacing a sensor: Removing the Sensor: Turn off the tester. Carefully detach the sensor from the device and lift the sensor tip. Completely separate the sensor from the tester so that the two components are no longer connected. Installing the Sensor: Ensure the tester is turned off. Check that the waterproof gasket is clean and undamaged. Attach the sensor to the tester by inserting hook “A” on the back of the device into hole “a” on the sensor tip. Make sure the waterproof gasket is not twisted. Important: After replacing the sensor, it is essential to follow the steps in the user manual of the respective tester to make the device ready for accurate measurements. (These manuals are available with the products. Calibration and, if necessary, conditioning are usually required.) How can I check if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, replacing the sensor is recommended. Regular checks and timely replacement of sensors are essential to ensure the high standards and reliability of water quality measurements performed with HORIBA LAQUAtwin Pocket Testers. Manufacturer Part Nr. 3200597237

The HORIBA LAQUAtwin Pocket Tester series provides a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure these measurements remain reliable and accurate, it is essential to regularly check the sensors and, if necessary, replace them with spare sensors. The replacement sensors, specifically designed for the HORIBA LAQUAtwin series, cover a wide range of types for various measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is engineered to maximize user-friendliness and accuracy, for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and precise measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be quickly replaced, allowing measurements to continue without delay. High Accuracy: Replacement sensors ensure that results are exact and reliable. Comprehensive Measurement Range: Various sensor types are available to cover a wide range of water quality parameters. Durability: Sensors are designed for long service life under challenging conditions. Sensor Replacement Instructions: Follow these steps when replacing the sensor to maintain the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester: Removing the Sensor: Turn off the tester. Move the sensor slightly away from the device and lift the sensor tip. Detach the sensor completely from the tester. Installing the Sensor: Ensure the tester is turned off. Make sure the waterproof gasket is clean and intact. Mount the sensor onto the tester so that hook “A” on the back of the device fits into hole “a” on the sensor tip. Ensure the waterproof gasket is not twisted. Important: After replacing the sensor, follow the steps in the user manual of the respective tester to make the device ready for accurate measurement. (These manuals are available with the products. Calibration and, if necessary, conditioning are usually required.) How can I check if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, it is advisable to replace the sensor. Regular checks and timely sensor replacement ensure that water quality measurements performed with the HORIBA LAQUAtwin Pocket Testers remain highly accurate and reliable. Manufacturer Part Nr. 3200997083

Manufacturer Part No. 3999960128 LAQUAtwin SALT-11 : The world's first pocket-sized salinity analyser. Your mobile laboratory - for use on site: Ideal for water quality testing in aquariums, food and many other applications. HORIBA's unique compact meter integrates electrode, display and sample container to enable simple, effective on-site testing by direct measurement with a single drop. Minimum sample volume: 0.12 ml Displays salinity and temperature Up to 2 calibration points Automatic calibration Automatic standard detection: 0.50 & 5.00 % NaCl Automatic temperature compensation: 2%/ºC fixed Temperature calibration: 5 to 40.0 ºC 2 salinity curves: NaCl & seawater Automatically stable / automatically maintained measurement Automatic switch-off: 30 min. Low battery indicator IP67 rating dust and waterproof Replaceable sensor 400 hours battery life: continuous operation without backlight Material: ABS epoxy housing and titanium coating with platinum black sensor Display: customised (monochrome) digital LCD with backlight Operating conditions: 5 to 40°C, 85% or less relative humidity Warranty: 2 years - meter, 6 months - sensor Packed in a practical carrying case Supplied with 0.5 % and 5.0 % NaCl standards (14 ml each), conditioning solution (4 ml), 2 x CR2032 batteries, pipette, instructions and short manual Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period.

Manufacturer Part No. 3200689158 LAQUAtwin SALT-22: The world's first pocket-sized salinity analyser. Your mobile laboratory - for use on site: Ideal for water quality testing in aquariums, food and many other applications. HORIBA's unique compact meter integrates electrode, display and sample container to enable simple, effective on-site testing by direct measurement with a single drop. Minimum sample volume: 0.3 ml (0.05 ml with sampling sheet B) Displays salinity, mV and temperature Up to 2 calibration points Automatic calibration Automatic standard detection: 0.5 & 5.0% NaCl (standard) Adjustable high and low calibration values Temperature calibration: 5 to 40.0 ºC Automatically stable / automatically held measurement Automatic switch-off: 30 min. Low battery indicator IP67 rating dust and waterproof Replaceable sensor 400 hours battery life: continuous operation without backlight Material: ABS epoxy Display: customised (monochrome) digital LCD with backlight Operating conditions: 5 to 40 ºC, 85% or less relative humidity Warranty: 2 years - meter; 6 months - sensor Packed in a practical carrying case Supplied with 0.5 % and 5.0 % NaCl standards (14 ml each), 5 x sampling sheet B, 2 x CR2032 batteries, pipette, instructions and short manual Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period.

Mobile Sodium Ion Tester from Horiba with Temperature Measurement – precise and robust High-precision sodium ion tester with 2-point calibration – ideal for water and environmental analysis The Horiba LAQUAtwin Na-11 sodium ion tester was specifically designed for accurate measurement of sodium concentrations in a wide range of samples. The device enables direct on-site measurements. Its clear display shows both the Na⁺ concentration and the sample temperature in a single step, making field, laboratory, and greenhouse work significantly more efficient. Mobile sodium ion tester for precise on-site measurements Featuring 2-point calibration and automatic standard recognition (150 and 2000 ppm), the instrument can be easily adapted to different measurement requirements. The integrated temperature display and automatic temperature compensation ensure accurate results even under fluctuating environmental conditions. The robust IP67 housing is dustproof and waterproof, making the tester suitable for demanding daily use. With a battery life of approximately 400 hours, reliable long-term operation is ensured. The tester is supplied with standard solutions, sampling sheets, batteries, and matching pipettes for immediate use. Why sodium measurement matters – and why a handheld tester is the ideal solution Measuring sodium ions plays a crucial role in water, environmental, food, and agricultural analysis. Excessively high or low sodium concentrations can significantly affect water quality, soil structure, plant growth, and the quality of food products and drinking water. Regulatory limits and quality standards further require regular monitoring. A mobile sodium ion handheld tester enables fast and precise analysis directly at the point of use, without time-consuming sampling or laboratory analysis. The Horiba LAQUAtwin Na-11 combines this flexibility with high measurement accuracy and ease of use, making it ideal for routine monitoring, quality control, and research applications. Typical applications for the Horiba sodium ion tester Environmental monitoring: Measurement of sodium concentrations in surface and groundwater to assess water quality and ensure compliance with environmental standards. Food and beverage production: Testing sodium levels in food and beverages for quality assurance, product development, and regulatory compliance. Agriculture: Monitoring sodium content in irrigation water and soils to support plant health and optimize water management. Research & development: Use in laboratories for experimental studies on sodium ion behavior under varying conditions. Education: Utilized in schools and universities to demonstrate the use of ion-selective electrodes in analytical chemistry. Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period. Frequently asked questions How long is the warranty period for HORIBA pocket testers? The warranty period is two years from delivery for commercial customers. How many measurements can be taken before the sensor needs to be replaced? This varies depending on the application, use and storage of the Horiba tester. As a rule, the sensor should be replaced after one year. How long is the warranty period for replacement sensors for pocket testers? The warranty period is 12 months after delivery for commercial customers. How do you clean the pocket tester? The pocket tester can be rinsed under water. We recommend cleaning with DI water (deionised). Tissue paper is recommended for drying after cleaning. How can the pocket tester be reset to factory settings? (e.g. in the event of an incorrect measurement result) This information can be found in the operating instructions. These can be found in the download area of the shop and on the product. Is calibration necessary before each measurement? Basically, yes. Further information can be found in the operating instructions.

HORIBA Ion standard solutions, ionic strength controllers and ion-selective electrode filling solutions are indispensable for accurate and reproducible measurements with ion-selective electrodes (ISE). A large number of analyses in laboratories and in the field, such as testing water and wastewater quality, environmental monitoring and quality control in industrial processes, rely on these solutions. Ionic standard solutions are used to calibrate ion-selective electrodes and ensure precise measurement. Horiba's standard solutions have a known ion concentration. They are therefore essential for setting up the electrodes correctly before using them for test runs. Ionic strength controllers are specifically designed to adjust the ionic strength of the sample to enable accurate measurements. They are particularly important when the composition of the samples could affect the measurement or in samples with low ionic strength. The ionic strength can be adjusted to stabilize the ionic activity in the solution. This leads to more accurate measurement results. Ion-selective electrode filling solutionsIon-selective electrode filling solutions are specific solutions that are filled into ion-selective electrodes. They ensure the proper operation of the electrode and help to maintain the potential required to measure the specific ion. To ensure that measurements meet international standards and to ensure conformity with regulatory and compliance standards, these specialized solutions are essential. Many industries, from pharmaceutical to environmental, use these solutions to meet their quality and safety requirements. For users working in areas such as water analysis, environmental monitoring or regulatory testing environments, these solutions ensure the accuracy and reliability required for critical measurements. To provide reliable data for important environmental, health and safety decisions, they are a crucial part of analytical chemistry. Overall, HORIBA's solutions enable experts to make the best use of their instruments and achieve the precise results required for their applications. Manufacturer article number: 3200697181 (500-NO3-IFS)

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043639 (100-2)

To accurately calibrate and maintain the HORIBA LAQUAtwin Pocket Testers, HORIBA provides a special selection of buffer, calibration and standard solutions. A convenient pack size of 6 x 14 ml of these solutions meets the requirements of the pocket testers as only a few drops are needed for calibration. This specific pack size helps to reduce waste and optimize efficiency during regular calibrations. The solutions available cover a variety of measurement ranges, allowing users to select the appropriate solution to suit their individual analysis or measurement needs: - pH buffer solutions: Solutions with pH values of 4.01 or 7.00 are available to calibrate the pH measurement. With these buffers it is possible to precisely regulate and control the pH measurement function of the LAQUAtwin Pocket Tester.- Conductivity standard solutions: 1413 μS/cm standard solutions ensure that the conductivity measurement of your devices is carried out precisely.- NaCl standard solutions: 0.5% or 5.0% NaCl solutions are available for the calibration of salinity measurement.- Ion standard solutions: HORIBA provides standard solutions to calibrate ion selective measurements. HORIBA provides standard solutions for sodium, potassium, nitrate and calcium, available in different concentrations: from low (e.g. 150 ppm) to high concentrations (e.g. 5000 ppm).- Fluoride ion standard solutions: For the calibration of fluoride measurements, HORIBA offers standard solutions with concentrations of 1 ppm and 10 ppm.- TISAB solution: A special solution for use with fluoride ion standard solutions to adjust the ionic strength of the sample for precise fluoride measurements.- ORP standard solution: For the calibration of redox measurements (ORP), HORIBA offers a solution with a redox potential of 225 mV. With these special solutions, the HORIBA LAQUAtwin pocket testers always provide accurate and reliable measurement results. The integrity of their measurement data and the lifetime of their devices can be ensured by regular calibration with these specifically formulated solutions. It is of great importance to select the appropriate calibration solution and standard solution to maintain the accuracy of measurements and ensure the reliability of water quality measurements in various applications. Manufacturer Part No. 3999960108

To accurately calibrate and maintain the HORIBA LAQUAtwin Pocket Testers, HORIBA provides a special selection of buffer, calibration and standard solutions. A convenient pack size of 6 x 14 ml of these solutions meets the requirements of the pocket testers as only a few drops are needed for calibration. This specific pack size helps to reduce waste and optimize efficiency during regular calibrations. The solutions available cover a variety of measurement ranges, allowing users to select the appropriate solution to suit their individual analysis or measurement needs: - pH buffer solutions: Solutions with pH values of 4.01 or 7.00 are available to calibrate the pH measurement. With these buffers it is possible to precisely regulate and control the pH measurement function of the LAQUAtwin Pocket Tester.- Conductivity standard solutions: 1413 μS/cm standard solutions ensure that the conductivity measurement of your devices is carried out precisely.- NaCl standard solutions: 0.5% or 5.0% NaCl solutions are available for the calibration of salinity measurement.- Ion standard solutions: HORIBA provides standard solutions to calibrate ion selective measurements. HORIBA provides standard solutions for sodium, potassium, nitrate and calcium, available in different concentrations: from low (e.g. 150 ppm) to high concentrations (e.g. 5000 ppm).- Fluoride ion standard solutions: For the calibration of fluoride measurements, HORIBA offers standard solutions with concentrations of 1 ppm and 10 ppm.- TISAB solution: A special solution for use with fluoride ion standard solutions to adjust the ionic strength of the sample for precise fluoride measurements.- ORP standard solution: For the calibration of redox measurements (ORP), HORIBA offers a solution with a redox potential of 225 mV. With these special solutions, the HORIBA LAQUAtwin pocket testers always provide accurate and reliable measurement results. The integrity of their measurement data and the lifetime of their devices can be ensured by regular calibration with these specifically formulated solutions. It is of great importance to select the appropriate calibration solution and standard solution to maintain the accuracy of measurements and ensure the reliability of water quality measurements in various applications. Manufacturer Article Number: 3200691954

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043637 (100-7)

To accurately calibrate and maintain the HORIBA LAQUAtwin Pocket Testers, HORIBA provides a special selection of buffer, calibration and standard solutions. A convenient pack size of 6 x 14 ml of these solutions meets the requirements of the pocket testers as only a few drops are needed for calibration. This specific pack size helps to reduce waste and optimize efficiency during regular calibrations. The solutions available cover a variety of measurement ranges, allowing users to select the appropriate solution to suit their individual analysis or measurement needs: - pH buffer solutions: Solutions with pH values of 4.01 or 7.00 are available to calibrate the pH measurement. With these buffers it is possible to precisely regulate and control the pH measurement function of the LAQUAtwin Pocket Tester.- Conductivity standard solutions: 1413 μS/cm standard solutions ensure that the conductivity measurement of your devices is carried out precisely.- NaCl standard solutions: 0.5% or 5.0% NaCl solutions are available for the calibration of salinity measurement.- Ion standard solutions: HORIBA provides standard solutions to calibrate ion selective measurements. HORIBA provides standard solutions for sodium, potassium, nitrate and calcium, available in different concentrations: from low (e.g. 150 ppm) to high concentrations (e.g. 5000 ppm).- Fluoride ion standard solutions: For the calibration of fluoride measurements, HORIBA offers standard solutions with concentrations of 1 ppm and 10 ppm.- TISAB solution: A special solution for use with fluoride ion standard solutions to adjust the ionic strength of the sample for precise fluoride measurements.- ORP standard solution: For the calibration of redox measurements (ORP), HORIBA offers a solution with a redox potential of 225 mV. With these special solutions, the HORIBA LAQUAtwin pocket testers always provide accurate and reliable measurement results. The integrity of their measurement data and the lifetime of their devices can be ensured by regular calibration with these specifically formulated solutions. It is of great importance to select the appropriate calibration solution and standard solution to maintain the accuracy of measurements and ensure the reliability of water quality measurements in various applications. Manufacturer Part No. 3999960109

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043636 (100-9)

Horiba pH6.86 (500 ml), pH4 (250 ml) and pH9.18 (250 ml) buffer solution (101-S) Reference electrode Internal solution #300 (250 ml) / dropper Use undiluted.The set contains standard and internal solutions, as shown. Manufacturer article number:3200043642 (101-S)

HORIBA Ion standard solutions, ionic strength controllers and ion-selective electrode filling solutions are indispensable for accurate and reproducible measurements with ion-selective electrodes (ISE). A large number of analyses in laboratories and in the field, such as testing water and wastewater quality, environmental monitoring and quality control in industrial processes, rely on these solutions. Ionic standard solutions are used to calibrate ion-selective electrodes and ensure precise measurement. Horiba's standard solutions have a known ion concentration. They are therefore essential for setting up the electrodes correctly before using them for test runs. Ionic strength controllers are specifically designed to adjust the ionic strength of the sample to enable accurate measurements. They are particularly important when the composition of the samples could affect the measurement or in samples with low ionic strength. The ionic strength can be adjusted to stabilize the ionic activity in the solution. This leads to more accurate measurement results. Ion-selective electrode filling solutionsIon-selective electrode filling solutions are specific solutions that are filled into ion-selective electrodes. They ensure the proper operation of the electrode and help to maintain the potential required to measure the specific ion. To ensure that measurements meet international standards and to ensure conformity with regulatory and compliance standards, these specialized solutions are essential. Many industries, from pharmaceutical to environmental, use these solutions to meet their quality and safety requirements. For users working in areas such as water analysis, environmental monitoring or regulatory testing environments, these solutions ensure the accuracy and reliability required for critical measurements. To provide reliable data for important environmental, health and safety decisions, they are a crucial part of analytical chemistry. Overall, HORIBA's solutions enable experts to make the best use of their instruments and achieve the precise results required for their applications. Manufacturer article number: 3200697185 (500-K-IFS)

This high-quality connection cable was specially developed for HORIBA D and F series benchtop measuring instruments. It enables reliable and stable data transfer between the measuring instrument and a compatible printer – ideal for direct documentation of measurement results in everyday laboratory work. Manufacturer article number: 3014030148

This high-quality printer paper is specially designed for use in the Citizen CBM-910II-24RF-230-A printer, as used in combination with HORIBA measuring instruments. It ensures clear, smudge-proof printouts and is ideal for documenting measurement results in the laboratory or in the field. Manufacturer article number: 3014030149

The HORIBA protective cover was specially developed for the F-70 and DS-70 series of benchtop devices. It reliably protects the measuring device from dust, splashing water and chemical influences – ideal for use in demanding laboratory environments or during prolonged storage. Manufacturer article number: 3200382441